Joseph h



(No Model.)

J.H.HOADLEY. FLUID. PRESSURE MOTOR;

Patented Jul 13, 1897.

- Q, M- a M R Q 0 a i I \l R R a w i: i 1 \1 Q) Q a (Q Q m L s g H I A 9I v i k U 1 I a u fiwnmsses: Ag INVENTOR W 1% MM, W

UNITED STATES PATENT OFFICE.

JOSEPH H. HOADLEY, OF NEW YORK, N. Y.

FLUID-PRESSURE MOTOR.

SPECIFICATION forming part of Letters Patent No. 586,384, dated July 13,1897.

Application filed May 7, 1896. serial No. 590,559. (No model.) i

'To aZZ whom it may concern:

Be it known that I, JOSEPH H. HOADLEY, a citizen of the United States,residing at New York, in the county and State of New York, have inventedcertain new and useful Improvements in Fluid-Pressure Motors, of whichthe following is a specification.

My invention relates to improvements in the reversing mechanism forfluid-pressure motors; and it consists, essentially, of oper ating thereversing mechanism by a fluidpressure-operated device under the controlof the mechanism which opens and closes the throttle-valve.

My invention is particularly applicable to the link-reversing mechanismin which the reversing-link is attached to a rod extending from a pistonwhich works in the fluidpressure cylinder communicating at its oppositeends with a fluid-pressure pipe or reservoir and a suitable exhaust. Thecommunication between the cylinder and the reservoir and exhaust iscontrolled by a suitable valve attached to and operated by the handlewhich opens and closes the throttle-valve of the engine.

The accompanying drawing represents a sectional elevation of afluid-pressure motor embodying my invention.

A is the engine-cylinder.

B is the piston, and C the piston-rod.

D is the sliding cross-head, to which the piston-rod O is attached andwhich slides in the ways E.

F is the crank-shaft, carrying the crank G, which is connected tocross-head D by the rod H. The crank Gr works in the crank-pit I.

b b are inlet and exhaust ports in the cylinder A.

K is the main supply-port, and L is the main exhaust-port.

M is the compressed-air or fluid-pressure supply-pipe.

N is the throttle-valve cylinder, communicating with air-pipe M and withthe main supply-port K through the pipe 0.

P is a throttle-valve comprising the main central piston 19 and the twoend pistons 19 19 all of which are maintained on the valve-rod 19 whichextends through a suitable packingbox in the head of the valve-cylinderand is pivoted to the bell-crank-operating hand-lever Q.

R.is the cut-off valve, comprising, preferably, two simple Dslide-valves r r, mounted upon a rod 0*.

S is the reversing-link, having its end pivoted to the rods S S carryingthe eccentricyokes s s at their ends, which operate upon the eccentricst and t, keyed to the crankshaft F.

U is the bearing-block, mounted upon the outer end of the rod r uponwhich the link S slides vertically.

V is the fluid-pressure reversing-cylinder, having passages 11 and 01extending from its opposite ends to the valve-cylinder V, which isattached to or forms a continuation of the throttle-valve cylinder N.

V? is the piston, working in the cylinder V and carrying the piston-rodV which is pivotally attached to the link S. The valve-cylinder Vcommunicates through the port 1: with the air-pipe M and with the openair through exhaust o V is a slide-valve supported in valve-cylinder Vand adapted to be operated by a collar w, which is mounted upon acontinuation of the valve-rod 19 which extends from the valve-cylinder Ninto the valve-cylinder V.

By means of the apparatus just described I am enabled to reverse thedirection of the engine by the movement of the handle which opens thethrottle-valve. In the intermediate position of the valves (shown in thedrawing) the throttle-valve will be closed and one port of thereversing-cylinder V will be in open communication with the air-pipewhile the other port will be closed, so that the reversing mechanismwill not be moved. By the movement of the lever Q for opening thethrottle-valve the reversing mechanism will be shifted to one positionor the other for running the engine in the desired direction.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is

1. The combination, in a fluid-pressure en gine or motor, of suitablereversing mechanism, a fluid-pressure-operated device controlling thereversing mechanism, a fluid-supply pipe communicating with the engineor mo-- ing mechanism of the engine, a valve con trolling the admissionand exhaust to and from the'fluid-cylinder, the fluid-pressuresupplypipe communicating with the engine or motor and with the reversingfluid-cylinder, the main throttle-valve of the motor, and a singlecontrolling device constructed to operate both valves simultaneously,substan- 1 tially as set forth.

JOSEPH H. HOADLEY. Witnesses:

M. V. BIDGOOD, GEO. E. BOUOHRE.

